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Question
If A = `[(5, -2),(7, 0)]` and B = `[(8),(3)]`, then which of the following is not possible?
Options
A2
AB
BA
15A
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Solution
BA
Explanation:
Given A is a matrix of order 2 × 2
And B is a matrix of order 2 × 1
Since the number of columns in B = 1 ≠ 2
= Number of rows in A
∴ BA does not exists.
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